Diaphragm valve for automobiles



Jan. 17, 1928. 1,656,214

P. MAssoN DIAPHRAGM VALVE FOR AUTOMOBILES Filed Oct. 25. 1926 Y MYO Patented Jan. 17, 192,8.

PATENT GFFICE.

PIERRE MASSON, F VILLEURBANNE, FRANCE.

DIAPHRAGM VALVE FOR AUTOMOBILES.

Application :tiled October 25, 1926, Serial No. 144,077, and in France November 17,/1925.

This invention relates to a valve for the gasoline piping systems of automobiles and the like. This valve, which comprises a diaphragm which is pressed onto a seat by a spring-actuated member, does not involve the employment of a packing-gland, stuiiingbox or the like and hence does not leak in use. It is easily controlled b the driver from his seat through rods or' exible cords.

In the annexed drawings:

Fig. 1 is a cross-section of a diaphragm valve in whichthe pressing member is directly controlled by a cord.

Figs. 2 and 3 show a valvepinwhich the ressing member is threaded and is rotated y the controlling cord, Fig. 2 being a face View and Fig. 3 a transverse section. y

Referring to Fig. 1, the valve com rises a body 1 into which the gasoline is a mitted by a ipe 2 and from which it is led into an annu ar chamber 3 which contains a gauze iilter 4.

A passage 5 leads from chamber 3 and is closed by a piece of acking 6 which is 26 pressed y a cap-nut rovided with an axial hole 9 which is pre erably tapered as shown in Fig. 1.v When nut 7 is loosened,

gasoline Hows through an inclined hole 8 into the axial hole 9, thus insuring an easy draining-off. i

A diaphragm 10 is placed'close to the filter 4, 1n a circular chamber 11. An axial passage 12 is provided inthe body 1 for the outlet of gasoline from chamber ll. A packing ring 13 is placed around the inlet of passage 12 and diaphra 10 may be pressed agiiinst said rin by a p1ston-like member 14 w ich is acte upon by an expansible spring 15.

Chamber 11 is hermetically divided into two parts by diaphragm 10 and there. is no need of packing gland, stuliing box or the like around piston 14, which is directly controlled by a cord, for instance.

In Figs. 2 and 3, the action of the iston member here designated 14 is di erent. Member 14 is threaded and its movements toward or from diaphra 10 are obtained .by rotation, a lever 16 eing keyed to the oo outer` end of said member and being acted upon by a spring 17 and by a cord or rod.'-

The pitch of the threads is such that a convenient longitudinal displacement of member 14 is obtained by a limited angular movement of lever 16.

What I claim as my invention is:

1. A diaphragm valve for the gasoline piping systems of automobiles and the like comprising in combination a body providing a chamber into which gasoline is admitted and an outlet passage for the asoline leading from said chamber; a diap ragm forming a. gasoline-tight partition in said chamber; a threaded member exterior to the part of said chamber into which gasoline is admitted; a spring-actuated lever on said member, said spring-actuated lever rotating said member in such a direction that it presses said diaphragm a ainst the inlet of said passage to hermetical close the same; and means for rotating said7 lever in a direction opposite to the action of the spring.

y2. A diaphragm-valve for the asoline piping systems of automobiles and t e like, comprising in combination a body providing an annular chamber into which gasoline is admitted and an outlet passage for the'gasoline leadin from said chamber; an annular filter forming a wall of said chamber; a circular chamber closefto said annular chamber and separated therefrom by said filter, said chambers bein substantially co-axial with each other and with said outlet assage; a diaphra m formin a gasoline-tight partition in said circular c amber; a memer exterior to the part of said chamber into which gasoline is admitted; and means for causing saidI member to press said diaphragm against the inlet of said passage and thereby hermetically close the same.

3. A diaphra `valve as claimed in claim 2, in which a rain-olf hole is provided in connection `with the' annular chamber, a

packing at the outletof said hole; and a nut or pressing said packing against said outlet, said nut having both an axial hole and an oblique hole whereby; byloosening said nut, gasoline will be permitted tol flow through said oblique and axial holes for draining-oit purposes.

In testimony whereof I aix m si ature.

PIERRE N. 

